<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>内联</title>
</head>
<body>
    <div>
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    </div>
    

</body>
<style>
    .float{
        float: left;
        
    }
    .eles{
        
        display: inline-block;
        width: 30px;
        height: 30px;
        color: pink;
        text-align: center;
        line-height: 30px;
        border-radius: 50%;
    }
    .front{
        background-color: black;
    }
    .back{
        background-color: blue;
    }
</style>
</html>